On One Inequality in Approximation Theory
We investigate one inequality in approximation theory and obtain necessary and sufficient conditions for the validity of this inequality. We present several examples demonstrating that the results obtained are unimprovable.
English version (Springer): Ukrainian Mathematical Journal 55 (2003), no. 11, pp 1899-1906.
Citation Example: Leonchik E. Yu. On One Inequality in Approximation Theory // Ukr. Mat. Zh. - 2003. - 55, № 11. - pp. 1580-1585.